baber/WOPTO huggingface dataset:
Patent GB-503041-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/34
Filed: 1937-11-18
Abstract: 503,041. Transformers and inductances ; protective arrangements. HANSELL, J. B., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Nov. 18 1937, No. 31798. [Classes 38 (ii) and 38 (iv)] A transformer or reactor is protected against high voltage surges by connecting in parallel with the whole or a part of the winding subject to the surge, a tapped non-linearresistance element, the tappings being connected to intermediate points of the windings. In the form shown in Fig. 1, discs 8 of resistance material are arranged in series in a slotted insulating tube 9 and are separated by metal discs 15 connected to tappings 7 of the winding 4. In a modification, the resistance elements and metal spacers are in the form of washers, and are threaded on an insulating rod. Fig. 5 shows an arrangement in which the amount of resistance necessary between tappings is greater than is permitted by a single resistance column. Two columns are used having resistance elements 8, 8a arranged in series. The Complete Specification refers to resistance material known under the Registered Trade Mark "Metrosil," and the Provisional Specification to a material known under the Registered Trade Mark " Thyrite."
Patent GB-1535696-A (GB)
Title: Sealing devices for joints between elongate members
IPC: B29C61/10
Filed: 1977-07-29
Abstract: 1535696 Sealing cable joints WALTER ROSE KG 29 July 1977 [27 Nov 1976] 31955/77 Heading H2E [Also in Division F2] A device, for sealing a connection between cables, pipes &c. 1, comprises a slit sheath or sleeve 2 of heat shrinkable material with outwardly extending fastening lips 3, 3 along opposite edges of the slit, openings (5, Fig. 1, not shown) along each lip and a helical spring 6 looped about the lips and passing through the openings fastening the lips together. To improve the seal, either one lip has a tapered strip 4 underlying the opposite edge of the slit or a T-shaped member (8, Fig. 3, not shown) lies with the vertical leg in the gap between the lips and the side members underlying the sheathing (2a).
Patent GB-300125-A (GB)
Title: Improvements in and relating to wrenches
IPC: B25B13/50
Filed: 1928-11-02
Abstract: 300,125. Ollagnon, P. Nov. 5, 1927, [Convention date]. Pivoted-jaw wrenches. - A wrench comprises a fixed jaw a on the end of a handle b and an adjustable jaw c pivoted at d to a yoke e pivoted at f to the fixed jaw. The jaw c is adjustable about the pivot d to vary the opening between the jaws by means of a pivoted yoke g carrying a pin h engaging a rack on the back of the jaw, a spring k being interposed between the fixed jaw at l and the movable jaw at j.
Patent GB-395562-A (GB)
Title: Improvements in machines for making coffee
IPC: A47J31/30
Filed: 1932-11-15
Abstract: 395,562. Coffee-urns. BUCKLEY, W. F., 44, Rue de Lisbonne, Paris. Nov. 15, 1932, No. 32224. [Class 129.] A coffee-pot 3 is removably placed in a recess 2 at the closed top of a water boiler 1. Hot water is admitted to the filter 4 at the top of the coffee-pot, from the boiler, by the pipe 9 and regulating valve 13. The end 11 of the pipe is perforated.
Patent GB-1430944-A (GB)
Title: Carboxyl group protection in n-blocked amino acids
IPC: C07D501/18
Filed: 1972-07-10
Abstract: 1430944 2-Furylmethyl carboxylates GLAXO LABORATORIES Ltd 4 July 1973 [10 July 1972] 32252/72 Heading C2C [Also in Division C3] In a process for the preparation of a derivative of an N-blocked amino acid, e.g. a penicillin, cephalosporin or a peptide, from an N-blocked amino acid possessing a protected carboxyl group the carboxyl group is protected in the form of a 2-furylmethyl ester group. A number of penicillin and cephalosporin compounds are prepared by the process and the following compounds are stated to be novel: 2-furylmethyl 7# - phenylacetamido - 3 - methylceph- 3 - em - 4 - carboxylate; 2 - furylmethyl - 7#- amino - 3 - methylceph - 3 - em - 4 - carboxylate and the salts thereof formed with acids, 2- furylmethyl 7# - [D - 2 - (N - 2,2,2 - trichloroethoxycarbonyl) - 2 - amino - 2 - phenylacetamido] - 3 - methylceph - 3 - em - 4 - carboxylate; 2 - furylmethyl 6# - phenoxyacetamido- 2,2 - dimethylpenam - 3α - carboxylate 1#- oxide; and 2-furylmethyl 3-methyl-7#-phenoxyacetamidoceph - 3 - em - 4 - carboxylate. The compound 2-furylmethyl DL-valinate paratoluene sulphonic acid salt is also prepared.
Patent GB-754192-A (GB)
Title: Protective device against the overcharging of compressed air brake installations with triple pressure control valve, in the released condition, more particularly for rail vehicles
IPC: B60T15/50
Filed: 1954-11-08
Abstract: 754,192. Compressed air railway brakes. KNORR-BREMSE. GES. Nov. 8, 1954 [Nov. 7, 1953], No. 32255/54. Class 103 (1). In a compressed air brake system, particularly for rail vehicles, including a control device 45 interposed in a charging pipe between a pressure supply line 29 and a constant pressure control chamber 37, 39, the device 45 being operable, when the brake is in released condition, to throttle or shut off the charging pipe for a limited period, there is also provided a second control device arranged to interrupt the charging of the brake cylinder independently of the pressure in the pressure supply line and in the auxiliary air reservoir 17, as soon as the prescribed maximum pressure has been reached in the brake cylinder, or a control device may be arranged to throttle or shut off the charging of the auxiliary reservoir for a limited time or during the release period. As shown in Fig. 1, said second control device comprises a piston 73 adapted to move against spring 71 to shut valve 69 leading from the auxiliary reservoir 17 to line 19 to the triple valve as soon as the pressure in brake cylinder 21 has reached a certain value. Specification 752,307 is referred to.
Patent GB-774552-A (GB)
Title: Improvements in or relating to fuel injection pump for turbo-charged internal combustion engines
Inventor: HANSEN SOREN
IPC: F02M59/26
Filed: 1954-11-08
Abstract: 774,552. Fuel-injection pumps. AKTIESELSKABET BURMEISTER & WAIN'S MASKIN-OG SKISBYGGERI. Nov. 8, 1954 [Nov. 21, 1953], No. 32322/54. Class 102(1) In a fuel-injection pump in which the plunger has a control edge 2 co-operating with a port 4 in the cylinder wall to determine the cessation of the injection, the head of the plunger. has a groove bounded by control surfaces formed as two inclined surfaces 1a, 1c, with a peak 1b, between them, to determine the beginning of injection. The pump is for use in turbo-charged internal combustion engines and results in the beginning of injection being advanced between no-load and an intermediate load and retarded between the intermediate load and full load to obtain a higher maximum pressure in the engine cylinders over the load range.
Patent GB-829402-A (GB)
Title: A device for locking dropping loads in aircraft
IPC: B64D9/00
Filed: 1956-10-23
Abstract: 829,402. Dropping loads from aircraft. BLACKBURN & GENERAL AIRCRAFT Ltd., and CLARK, F. M. Oct. 23, 1956, No. 32336/56. Class 9(2) [Also in Group XXV] A device for releasably locking a load in an aircraft prior to dropping comprises a mounting 1 which is made fast to the frame 2 carrying the load and consists of a bifurcated member with a recess 3 housing the forked end 5<SP>1</SP> of a lever 5 having its free end connected by a wire 10 to an extractor parachute (not shown), the lever 5 being engaged by the ball-end 6<SP>2</SP> of a rod 6 pivoted on the aircraft. Preferably a shear wire is passed through a bore 7 in the lever 5 and registering bores in lugs 8 of the mounting 1 to lock the lever 5. The rod 6 is preferably adjustable in length. The wire 10 is connected to the release lever 5 by means of a pair of plates 11, which are connected to the lever and to lines 12 connected to the load. When a load is placed in the fuselage it is pushed until the rod 6 engages the lever 5, forward movement of the load being limited by a stop 13. To drop the load, the extractor parachute is released and pulls the wire 10 rocking the lever 5 and disengaging the rod 6. This frees the load, and the pull is then taken up by the wires 12 to pull the load out of the fuselage. Specification 829,401 is referred to.
Patent GB-156409-A (GB)
Title: Device for removing tyres from or placing them on rims
IPC: B60C25/04
Filed: 1919-12-24
Abstract: 156,409. Marks, E. C. R., (Industrial Research Corporation). Dec. 24, 1919. Tyres, elastic, tools for removing and replacing.-Two parallel fingers 21, 22, carried by toothed racks 14, 15, are, when close together, inserted so as to separate the tyre edges T from the rim flanges R and are then separated, while still parallel, by rotating the gear wheel 6 by means of the detachable handle 12. When the fingers have been separated, the whole apparatus is tilted to permit the tyre edges to slide over the rim flanges. A stationary finger 23 and a detachable hinged piece 27, 30 permit the fingers 21, 22 to be forced between the tyre edges and the rim flanges.
Patent GB-771899-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers
Inventor: CARVER HENRY RICHARD
IPC: F16F9/18
Filed: 1954-11-09
Abstract: 771,899. Hydraulic shock-absorbers. WOODHEAD-MONROE, Ltd. July 22, 1955 [Nov. 9, 1954], No. 32434/54. Class 108(3). The invention relates tc hydraulic shock absorbers of the kind comprising a piston 13 having valve means for controlling the flow of oil from one side to the other and operating in a cylinder 10 which is closed at one end by a compression valve assembly 20 which controls the flow of oil to and from a reserve chamber 12 disposed concentrically around the cylinder 10. According to the invention, an anti aeration sleeve or tube 24 extends from the upper part of the reserve chamber 12 to a point below the level o: the oil therein, and is sc dimensioned as to leave only a small annular space for oi flow between its outer sur face and the inner surface o: the cylindrical casing 11 defining the reserve cham ber 12. An annular baffle 23 is disposed within the chamber 12 to prevent surging of the oil.
Patent GB-1211965-A (GB)
Title: Improvements relating to interval timers for use with photographic apparatus
IPC: G03B17/52
Filed: 1969-06-26
Abstract: 1,211,965. Timing photographic processes. POLAROID CORP. June 26, 1969 [June 27, 1968], No.32444/69. Heading G2A. A self-developing camera has a timerannunciator system in which an indicator light is energized continuously during the time the developing and image transfer process is taking place, and sounds an audible signal when the process is concluded. As shown, a door 22, which allows film egress, is normally closed, and so maintains a switch 32 in open circuit position. When the door is opened, to commence removal of a film, the switch is closed, and the circuit of Fig. 2 energized, the switch 32 corresponding to the switches S 1  and  S 2 . Closure of switch S 1  biases a transistor Q 5  into conduction, and hence transistors Q 2  and Q 4  are also biased into conduction. Consequently a lamp 60 is energized (shown as at 34 in Fig.1), and remains alight throughout the time the processing step is taking place. The switches S 1  and S 2  are opened again, but transistor Q 5  is held "on", and therefore the lamp 60 remains alight. An RC timing arrangement (resistor 72 and capacitor C 1 ), after reaching a predetermined value, triggers the circuit section A, which renders transistor Q 2  non-conductive, so that lamp 60 is de-energized, indicating the termination of the processing period. At the same time an oscillator-transducer arrangement 82 emits an audible signal. This may be situated beneath the grille 40 in Fig.1. The processing time can be adjusted by the variable resistor 72 Fig.2, corresponding to the knob 36 in Fig.1. As trigger section A is activated, a transistor Q 3  forming part of a second trigger section B is triggered into a conductive state. This causes transistor Q 5  to be de-energized, and the entire system re-assumes a standby status.
Patent GB-192854-A (GB)
Title: Improvements relating to friction clutches
IPC: F16D23/12
Filed: 1921-12-03
Abstract: 192,854. Pugh, Ltd., C. H., Bull, G. F., and Starkey, E. W. Dec. 3, 1921. Clutches, friction; operating.-In clutch gear for use on motor-driven lawn mowers &c., a clutch plate 3 on the driven sleeve 4 is adapted to be clutched by a plate 1 splined to the driving- shaft 2 and pressed to clutching position by springs 8 bearing against a sleeve 11 slidable on or secured to the shaft. Pins 13, 16 on rings 12, 15 bearing against the parts 1, 11 pass through slots in a stationary casing sleeve 19 and are engaged by links 23, the ends 24, 25 of which are pivoted upon a floating operating-lever 21 working in a gate at the mower handles. Endthrust upon the shafts during clutch disengagement is thereby prevented. According to the Provisional Specification, a clutch may be provided at each end of the shaft, both clutches being operated by the same lever and springs.
Patent GB-1116786-A (GB)
Title: Apparatus for drying tobacco or other foliate material
IPC: A24B3/04
Filed: 1966-07-19
Abstract: 1,116,786. Drying tea. HAUNI-WERKE KORBER & CO. K.G. 19 July, 1966 [4 Aug., 1965], No. 32464/66. Heading F4G. Apparatus for drying tea or like foliate material comprises a chamber 2 through which the material is carried by a current of heated gas supplied at 4 to an upper outlet 6 and the material is fed to an opening 12 in the chamber wall by a rotary valve feeder assembly 38 which delivers regulated amounts of material on to a horizontally-mounted vibratory conveyer 14 connected in sealed manner to the chamber wall. The rotary valve has its driving shaft 40 parallel to the feed direction of the conveyer 14.
Patent GB-521130-A (GB)
Title: Improvements in wheel castors and wheel brackets
IPC: B60B33/04
Filed: 1938-11-09
Abstract: 521,130. Castors; arrangement of wheels. TOWNSEND, C. R., and TOWNSEND, C. M. Nov. 9, 1938, No. 32470. [Class 52 (i)] [Also in Group XXXII] A wheel castor is carried by a horizontal fork 4 pivoted to a vertical fork 6 which may either be fixed to or swivel in an attachment member 11, a leaf spring 19, preferably laminated, being mounted obliquely in the angle between the two forks. The horizontal fork is provided with an inclined seating 13 against which the spring 19 is bolted, the free end of the spring being held against antifriction balls 22 by a hooked member 23 clamped to the crown 7 of the fork 6. An extension 16 of the wall 15 is normally free of the spring but contacts therewith as the load increases to shorten the effective length of the spring. A safety stop 25 on the vertical fork abuts against the spring under overload condition.
Patent GB-1388562-A (GB)
Title: Pumps for liquids
IPC: F04D1/12
Filed: 1971-07-10
Abstract: 1388562 Centrifugal pumps JOSEPH LUCAS (INDUSTRIES) Ltd 5 July 1972 [10 July 1971]  32497/71 Heading F1C The invention relates to a pump for liquid which comprises a housing 10 in which is rotatably mounted a hollow rotor 13, a stationary pick-up member 24 being disposed within the rotor by which liquid is passed to outlet 12, the pick-up member being pivotably mounted whereby the radius of its inlet 32 may be varied. The housing 10 comprises an inlet 11 and an outlet 12, the rotor being driven by means of a shaft 19; the rotor comprises a conical portion 15 and radial vanes 16. The housing 10 comprises a cylindrical part 20 which projects into the hollow interior of the rotor being formed with two passages 26 which communicate with the outlet 12. The pick-up member 24 comprises an inlet 32 and an internal passage 25 which communicates with the passages 26. The member 24 is pivotably mounted at its inner end whereby the radial distance of the inlet 32 from the rotor axis may be varied, so varying the pressure of the liquid at the pump outlet. The member is formed with a gear sector 27 which engages a rack formed on an axially movable rod 28, the rod being movable by a piston-in-cylinder type actuator 29. Any air or vapour within the rotor may pass through labyrinth seal 21 to space 22 and thence through openings 33 to the rotor inlet 17. In Figure 3 the pick-up member 42 is mounted on a hollow shaft 45 which is rotatably mounted in the fixed structure 43 eccentrically of the rotor axis. The hollow shaft is formed with inlet openings 47 by which liquid passes from the pick-up member into the shaft, and with openings 46 by which liquid passes from the shaft to the outlet 48. The shaft 45 is rotatable by means of a lever 49 so as to vary the distance of the inlet of the pick-up member from the axis of the rotor.
Patent GB-306627-A (GB)
Title: Improvements in or relating to saucepans, stewpans, and cooking pots
IPC: A47J36/20
Filed: 1927-12-02
Abstract: 306,627. Deller, W. Dec. 2, 1927. Saucepans; heating and cooking vessels; bodies.-The body a of a saucepan, cooking pot, or like vessel is formed with a series of grooves or corrugations b on which are adapted to be supported, by means of lips or lateral projections h, a series of loose discs, trays, or dishes d, e, the lips h in the last construction being shaped to grip the corrugations. The corrugations may be interrupted by two or more vertical fiats c to enable the discs &c. to be inserted, or continuous corrugations operating in conjunction with movable bolt-operated or like lips on the discs may be employed. The discs may be perforated and may be provided with covers, and are fitted with lifting handles f. The vessel serves for steaming and like cooking operations, and when inverted with one or more perforated discs in position acts as a colander or strainer. A domed lid g closes the vessel.
Patent GB-1443696-A (GB)
Title: Moulded cementitious products
IPC: B28B13/02
Filed: 1972-07-12
Abstract: 1443696 Cementitious mixtures IMPERIAL CHEMICAL INDUSTRIES Ltd 11 July 1972 [12 July 1972] 32558/72 Heading C1H [Also in Divisions B4-B5 and E1-E2] A cementitious mixture comprises, amongst other listed ingredients, a selection from: phosphate-, silicate-, portland- or high-aluminacement, plaster, water, latex, polyglycol derivatives, styrene butadiene copolymer, polyvinyl acetate, acrylics, neoprene, pigments, lightweight aggregates, glass-, cotton-, jute-, polyamide-, polyester- or polyolefin-fibres, steel or rock wool, expanded metal mesh, paper, fabrics. Sheets or blocks of foamed plastics, honeycombs of plastics or paper, wood pieces &c. are embedded in the mixture. The reinforcements are coated with a silane or chromium type coupling agent, for improved bonding. In one of several examples, 100 parts by weight of high-alumina-cement, 10 parts by weight of a latex of a styrene butadiene copolymer, and 25 parts by weight of water bound steel wool. Moulding of panels is described (see Divisions B4-B5).
Patent GB-641455-A (GB)
Title: A film drying process for the preparation of pulverised or scaly products
IPC: F26B5/00
Filed: 1947-12-10
Abstract: An aqueous solution or suspension of a salt of a sulphuric acid ester, derived from a higher alkene or the corresponding alcohol, is dried in a thin layer on a heated roller or other surface in the presence of a proportion of a water-soluble crystallizable salt, amounting to at least about 125 per cent by weight of the ester salt. The crystallizable salt must have a melting-point higher than the drying temperature.  Suitable salts are the alkali and ammonium halides, sulphates, phosphates, and borates; also alkali silicates. A pulverized or scaly product is obtained, and if phosphates, borates or silicates are used, products with particularly favourable washing properties are obtained.  The products may be used for washing textiles, for cleaning metals, and as wetting agents.  The process may be carried out under atmospheric or reduced pressure.  In an example, 25 parts of anhydrous sodium sulphate were added at about 80 DEG  C. to 100 parts of a sodium alkyl sulphate solution of about 17 per cent concentration, which had been prepared from a C8-C18 alkene fraction and contained, besides the ester salt, about 6 per cent of sodium sulphate.  The solution thus obtained was dried on a roller heated to about 175 DEG  C.  A white scaly product which contained about 35 per cent of ester salt, was obtained.
Patent GB-618211-A (GB)
Title: Improvements in dust collectors
IPC: B63B9/00
Filed: 1946-11-04
Abstract: 618,211. Centrifugal machines. HOWDEN & CO., Ltd.. J., and LEE, L. Nov. 4, 1946, No. 32629. [Class 23] A multi-cell dust collector has a structure comprising a hopper 13 for the reception and collection of separated dust, a plurality of dust separator cells 10 within the structure and mounted for the discharge of separated dust directly into the hopper 13, a dusty-gas inlet conduit 11 and a clean gas outlet conduit 12. An independent dust separator 16 is connected by at least one conduit 14 to a point 15 adjacent the inlet conduit 11 and is arranged to receive gas discharged from the cells 10 into the hopper 13 from a position above the collected dust in the hopper. A circulating fan 17 maintains air flow through conduits 14, 18, 19, the flow being controlled by a damper 20. The arrangement sets up a depression in the hopper and prevents into-flow between the cells.
Patent GB-684032-A (GB)
Title: Process for destroying or preventing foaming in liquid media
IPC: B01B1/04
Filed: 1949-12-21
Abstract: Foam in liquid media is prevented or destroyed by the addition of a compound containing at most 15 carbon atoms in the molecule having the formula R R1X1R2X2R3 wherein R1 and R3-aliphatic hydrocarbon radicals, R2=an hydroxy alkylene radical containing from 3-5 carbon atoms and X1 and X2=oxygen and sulphur.  Specified compounds are the following ethers of glycerine: 1:3 di-n-butyl-, 1:3 di-isobutyl-, 1:3 di-sec-butyl-, di-n-propyl-, di-isopropyl-, di-pentyl-, propyl-butyl-, propyl-pentyl-, propyl-hexyl-, ethyl-butyl-, ethyl-pentyl-, ethyl-hexyl-, ethyl-heptyl-, ethyl-octyl-, methyl-butyl-, methyl-pentyl, methyl-hexyl-, methyl-octyl-, and methyl-nonyl-.  Instead of glycerine ethers, ethers of methyl glycerine, thioglycerine and dithioglycerine and their homologues may be employed.  The compounds may be employed in admixture with one another or with other foam-inhibiting agents and may be employed in solution or, together with an emulsifier, as aqueous emulsions.
Patent GB-362113-A (GB)
Title: Improvements in the mounting of control and brake levers for cycles, and the like
IPC: B62L3/02
Filed: 1930-11-01
Abstract: 362,113. Cycle &c. brake and control levers. RALEIGH CYCLE CO., Ltd., Faraday Road, Lenton, and RAVEN, W. H., 45, Lenton Road, The Park, both in Notting- ham. Nov. 1, 1930, No. 32879. [Class 136 (i).] In means for mounting brake and control levers on the handle-bars of cycles &c., of the type comprising a twopart clip a, b of which the levercarrying part a is wider than the other part b, the two rts a, b are arched transversely, so as to grip the handle-bar only by their edges. The wide part a may be further shaped so that only its four corners come in contact with the bar. The width of the part a may be equal to the diameter of the bar, and twice the width of the part b. The part b may be widened at one or both ends to the width of the part a. The pivot bolt d<1> of the lever d may be mounted in either of two holes, so as to give two alternative positions of the lever.